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Posted by Wayne Whitney on July 26, 2009, 1:27 pm
Hello,
Residential application with wood windows and wood shingle siding.
For the usual condition where a window has siding above it, and the
head trim projects out beyond the siding, I understand that a head
flashing is required between the head trim and the siding, to direct
outward any moisture from above.
However, what about windows just under the eave? In my situation,
there will be no siding above these windows, as the head trim butts
into the freize board, whose face is proud of the head trim. The eave
overhang is 2 feet and located just 1.5 feet above the window head
trim.
Here it seems like head flashing is neither necessary nor useful.
With the projecting freize board and large roof overhang, I can't see
moisture making its way into the area above the window. And with the
head trim butted tight into the freize board, there's no space for
moisture to be let out, anyway. This is an original detail that I
would like to preserve.
Am I on the right track here, or should I be planning things
differently?
Thanks,
Wayne
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Posted by jloomis on July 26, 2009, 3:09 pm
I think you are on a right track. Yes, a large eave. like the brow of a
hat, keeps water out.
I would caulk well and be done with it.
On exposed windows that is differet.
Sometimes I make a large "z" flashing that goes under paper and siding, and
hangs over top window trim by a half inch.
I think like you stated, you are in the clear being up so high under the
eave.
john
(just watch out for water blasting and washing the house) It will possible
leak in then, but should not hurt anything.
> Hello,
> Residential application with wood windows and wood shingle siding.
> For the usual condition where a window has siding above it, and the
> head trim projects out beyond the siding, I understand that a head
> flashing is required between the head trim and the siding, to direct
> outward any moisture from above.
> However, what about windows just under the eave? In my situation,
> there will be no siding above these windows, as the head trim butts
> into the freize board, whose face is proud of the head trim. The eave
> overhang is 2 feet and located just 1.5 feet above the window head
> trim.
> Here it seems like head flashing is neither necessary nor useful.
> With the projecting freize board and large roof overhang, I can't see
> moisture making its way into the area above the window. And with the
> head trim butted tight into the freize board, there's no space for
> moisture to be let out, anyway. This is an original detail that I
> would like to preserve.
> Am I on the right track here, or should I be planning things
> differently?
> Thanks,
> Wayne
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Posted by Wayne Whitney on July 26, 2009, 6:04 pm
> I think you are on a right track. Yes, a large eave. like the brow
> of a hat, keeps water out. I would caulk well and be done with it.
Great, thanks for the advice.
Cheers, Wayne
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> Residential application with wood windows and wood shingle siding.
> For the usual condition where a window has siding above it, and the
> head trim projects out beyond the siding, I understand that a head
> flashing is required between the head trim and the siding, to direct
> outward any moisture from above.
> However, what about windows just under the eave? In my situation,
> there will be no siding above these windows, as the head trim butts
> into the freize board, whose face is proud of the head trim. The eave
> overhang is 2 feet and located just 1.5 feet above the window head
> trim.
> Here it seems like head flashing is neither necessary nor useful.
> With the projecting freize board and large roof overhang, I can't see
> moisture making its way into the area above the window. And with the
> head trim butted tight into the freize board, there's no space for
> moisture to be let out, anyway. This is an original detail that I
> would like to preserve.
> Am I on the right track here, or should I be planning things
> differently?
> Thanks,
> Wayne